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Globally, an estimated 2.5 billion people lack access to improved sanitation.
Background: Refugees are at high risk for communicable diseases due to overcrowding and poor water, sanitation,
In July 2007, a study by the Centre for Environmental Health Engineering, at the University of Surrey, assessed a modified method of
The Treguine refugee camp in Eastern Chad, is in a semi-arid terrain of hard, crystalline rock, where hard-rock boreholes proved ina